supervillain

noun

1. A fantasy-fiction criminal or evildoer, often with supernatural powers or equipment, in popular children's and fantasy literature who can present a credible challenge for a superhero.

   “The US spy tech company Palantir published a manifesto extolling the benefits of American power and implying some cultures are inferior to others – in what MPs have called “a parody of a RoboCop film” and “the ramblings of a supervillain”.”